she is his s_____,Mary

she is his s_____,Mary His name is Gina.和 She name’s Mary.改错 Is that his book?No,it's_____. Look,that is Mary .( )(He/She)is my friend.This is( )(His/He she s_____ her present is a secret She is a very famous s_____. she is a s_____ film star. -Where is Mary?-She is( ) she is chasing the mouse.How s_____ she is? His name is Mary Brown ___ is Mary.This is ___ computer.A She,she B I,my C He,his D Mary is his student .She plays the violin very well.（单复数变换并改